介绍了内蒙古大唐国际托克托发电有限责任公司(以下简称托电公司)锅炉一次风机变频器改造方案,并分析了变频改造后所取得的效果,比较了采用变频器前后的节能效果,对降低厂用电率,提高机组运行效率有一定的实际意义。通过运行实践,得出一次风机工频与变频切换的操作程序,为同类电厂锅炉一次风机变频改造进行了有益的尝试。 This article introduced the modification plan of boiler primary fan inverter of Inner Mongolia Datang International Tuoketuo Power Generation Co., Ltd. (hereinafter referred to as “Power Company”), and analyzed the effect obtained after the transformation of frequency conversion, compared the energy saving effect before and after using frequency converter, Reducing the rate of plant electricity, improve unit operating efficiency has some practical significance. Through the practice of operation, a working procedure of the power frequency and frequency conversion of the fan was derived, which made a beneficial attempt for the frequency conversion of the primary fan in the same kind of power plant.